]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915: use forced codec wake on all gen9+ platforms
authorKai Vehmanen <kai.vehmanen@linux.intel.com>
Tue, 24 Mar 2020 15:32:12 +0000 (17:32 +0200)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Fri, 27 Mar 2020 15:33:12 +0000 (17:33 +0200)
commit2662c949f0813a59812641b73570bc238c3ec3fe
tree13269b23773f49e386e7953ac93ecc9eb578ca44
parent421b1a9aa75137ef0e825fc496a30cf7c8d9a732
drm/i915: use forced codec wake on all gen9+ platforms

Commit 113f0ee6d173 ("drm/i915/audio: add codec wakeup override
enabled/disable callback"), added logic to toggle Codec Wake on gen9.
This is used by audio driver when it resets the HDA controller.

It seems explicit toggling of the wakeline can help to fix problems
with probe failing on some gen12 platforms. And based on specs, there
is no reason why this programming sequence should not be applied to all
gen9+ platforms. No side-effects are seen on gen10/11. So apply
the wake-logic to all gen9+ platforms.

Link: https://github.com/thesofproject/linux/issues/1847
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324153212.6303-1-kai.vehmanen@linux.intel.com
drivers/gpu/drm/i915/display/intel_audio.c